flat point set screw 平端定位螺钉
cup point set screw 圆端止动螺钉
pivot-point screw 枢轴螺旋
zero point adjustment screw 零点调节螺丝
Flanged 12-Point Screw 凸缘12点螺钉
point of pedicle screw insertion 和椎弓根螺钉进钉点
screw entry point 螺钉进钉点
screw twelve point 十二角螺栓
screw entrance point 螺钉进钉点
SCREW TWELVE POINT CAP 十二角头螺栓
应用推荐